WO2004018239A1 - Assemblage pneumatique/roue - Google Patents

Assemblage pneumatique/roue Download PDF

Info

Publication number
WO2004018239A1
WO2004018239A1 PCT/JP2003/009322 JP0309322W WO2004018239A1 WO 2004018239 A1 WO2004018239 A1 WO 2004018239A1 JP 0309322 W JP0309322 W JP 0309322W WO 2004018239 A1 WO2004018239 A1 WO 2004018239A1
Authority
WO
WIPO (PCT)
Prior art keywords
tire
elastic ring
wheel assembly
rim
bent portion
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2003/009322
Other languages
English (en)
Japanese (ja)
Inventor
Shinichi Mori
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yokohama Rubber Co Ltd
Original Assignee
Yokohama Rubber Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Yokohama Rubber Co Ltd filed Critical Yokohama Rubber Co Ltd
Priority to US10/513,020 priority Critical patent/US7036543B2/en
Publication of WO2004018239A1 publication Critical patent/WO2004018239A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C17/00—Tyres characterised by means enabling restricted operation in damaged or deflated condition; Accessories therefor
    • B60C17/04—Tyres characterised by means enabling restricted operation in damaged or deflated condition; Accessories therefor utilising additional non-inflatable supports which become load-supporting in emergency
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B21/00—Rims
    • B60B21/02—Rims characterised by transverse section
    • B60B21/023—Rims characterised by transverse section the transverse section being non-symmetrical
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B21/00—Rims
    • B60B21/12—Appurtenances, e.g. lining bands
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B21/00—Rims
    • B60B21/12—Appurtenances, e.g. lining bands
    • B60B21/125—Bead clamping elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C17/00—Tyres characterised by means enabling restricted operation in damaged or deflated condition; Accessories therefor
    • B60C17/04—Tyres characterised by means enabling restricted operation in damaged or deflated condition; Accessories therefor utilising additional non-inflatable supports which become load-supporting in emergency
    • B60C17/043—Tyres characterised by means enabling restricted operation in damaged or deflated condition; Accessories therefor utilising additional non-inflatable supports which become load-supporting in emergency made-up of an annular metallic shell
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C17/00—Tyres characterised by means enabling restricted operation in damaged or deflated condition; Accessories therefor
    • B60C17/04—Tyres characterised by means enabling restricted operation in damaged or deflated condition; Accessories therefor utilising additional non-inflatable supports which become load-supporting in emergency
    • B60C17/06—Tyres characterised by means enabling restricted operation in damaged or deflated condition; Accessories therefor utilising additional non-inflatable supports which become load-supporting in emergency resilient

Definitions

  • the present invention relates to a tire / wheel assembly, and more particularly, to a three-dimensional tire / wheel assembly in which run-flat durability is further improved by improving the fall-preventing property of a tire bead portion.
  • the run-flat core (support) has an annular shell with an open leg structure in which the outer peripheral side is a support surface and the inner peripheral side is opened, and elastic rings are attached to both legs. However, it is supported on the rim via the elastic ring. According to this run-flat core, the existing wheels / rims can be used as they are without any special modification, so that they have the advantage that they can be accepted without causing confusion in the factory. I have.
  • An object of the present invention is to provide a tire / wheel assembly that further improves run-flat durability by improving the ability of a tire bead portion to fall off.
  • the tire / wheel assembly of the present invention which achieves the above object, comprises an annular seal having a support surface on the outer peripheral side and a bifurcated inner peripheral side in the cavity of the pneumatic tire.
  • the annular seal In a sunset / wheel assembly into which a run-flat support made of an elastic ring supporting an open leg end on a rim is inserted, the annular seal is folded to an end connected to the elastic ring.
  • the cross section of the elastic ring which is perpendicular to the circumferential direction, is formed in a barrel shape with both sides bulging out.
  • the maximum thickness B that expands with respect to a tangent line L2 extending so as to be in contact with P4 is set to 1 to 5 mm.
  • the elastic ring of the run-flat support is formed in a barrel-shaped cross section, the cross-sectional area sandwiched between the tangents L 1 and L 2 is used as a load transmitting section, and its radial inner end is at least on the rim
  • a part of the load is distributed to the rim flange side through the obliquely inclined tire bead inner surface because it is in contact with the region from the apex of the hump to the intersection point P2 corresponding to the centroid of the bead core on the inner surface of the tire bead. Load as force, and strongly clamp the tire bead between the rim flange.
  • FIG. 1 is a meridian sectional view showing a main part of a tire / wheel assembly according to an embodiment of the present invention.
  • FIG. 2 is a partially enlarged cross-sectional view showing a tire bead portion of the tire / wheel assembly of FIG. 1 in an enlarged manner.
  • FIG. 3 is an enlarged view showing a portion of an elastic ring according to another embodiment of the present invention. It is an expanded sectional view.
  • the run flat support is formed as an annular body inserted into the cavity of the pneumatic tire.
  • the run flat support is formed to be smaller than the inner diameter of the cavity so that the outer diameter is kept at a certain distance from the inner surface of the cavity of the pneumatic tire, and the inner diameter is substantially equal to the inner diameter of the bead of the pneumatic tire. They have the same dimensions.
  • the run flat support is rim-assembled with the pneumatic tire together with the pneumatic tire in a state of being inserted inside the pneumatic tire to form a tire / wheel assembly. If the pneumatic tire is punctured while the tire / wheel assembly is mounted on a vehicle and running, the punctured and crushed evening tire will be supported by the outer peripheral surface of the run flat support. Enables run-flat driving.
  • the run flat support is mainly composed of an annular shell and an elastic ring.
  • the annular seal forms a continuous support surface to support a punctured tire on the outer peripheral side (outer diameter side), and the inner peripheral side (inner diameter side) has a bifurcated shape with left and right side walls as legs. It has become.
  • the support surface on the outer peripheral side is formed such that the shape of the cross section perpendicular to the circumferential direction is a curved surface convex toward the outer diameter side.
  • the number of convex portions on the outer peripheral side of the annular shell may be one, or may be two or more.
  • the load to be supported during run flat running can be dispersed to the plurality of convex portions, so that the durability of the annular seal can be improved as a whole.
  • the annular seal is made of a rigid material.
  • Metal, resin, etc. are used for the constituent materials. Examples of the metal include steel and aluminum.
  • the resin may be either a thermoplastic resin or a thermosetting resin.
  • the thermoplastic resin include nylon, polyester, polyethylene, polypropylene, polystyrene, polyphenylene sulfide, and ABS, and examples of the thermosetting resin include epoxy resin and unsaturated polyester resin. Can be mentioned. Use resin alone Alternatively, reinforcing fibers may be blended and used as a fiber reinforced translation.
  • the elastic rings are attached to the ends of the bifurcated legs on the inner diameter side of the annular shell, respectively, and support the load from the annular shell by abutting on the left and right rim seats.
  • the elastic ring is made of rubber or elastic resin, and reduces the shock and vibration that the annular seal receives from the punctured sealer, and also stabilizes the annular seal by preventing the rim sheet from slipping.
  • the annular seal has a flange-shaped bent portion at a portion (end) connected to the elastic ring.
  • a bent portion By having such a bent portion, a joint area with the elastic ring is increased, and a large connection strength can be obtained.
  • the bent portion secures a constant cross-sectional area for load transmission sandwiched between two tangents LI and L described later, and stabilizes the load from the annular seal on the rim and tire bead. State and transmit.
  • the shape of the elastic ring in a cross section orthogonal to the circumferential direction is formed in a barrel shape in which both side surfaces are bulged.
  • the bulging portion on one side extends from the apex P 1 of the hump of the rim sheet to the axial inner end P 3 of the bent portion of the annular seal end.
  • the maximum thickness A is 3 to 6 mm, preferably 4 to 5 mm.
  • the bulge on the opposite side is defined as P 2, which is the intersection between the line L 3 passing through the bead core and parallel to the tire axis and the inner surface of the tire bead. It bulges so that the maximum thickness B is 1 to 5 mm, preferably 1.5 to 3.5 mm, with respect to a tangent line L2 extending so as to contact the axially outer end P4 of the bent portion.
  • the bulging portion may have a trapezoidal shape or a mountain shape with a smooth curve as long as it forms a barrel shape. It is preferable that at least the portion having the maximum thickness is located at the center in the radial direction.
  • the apex P 1 of the hump is defined as the apex P 1 of the hump with a center point in the width direction of the apex.
  • the effect of stably supporting the vehicle weight by the above-mentioned run flat support and the effect of stably generating a component force on the rim flange side to prevent the bead from falling off are perpendicular to the tire axis of the tangent L1.
  • the inclination angle ⁇ with respect to the direction is preferably in the range of 10 ° to 10 °, and more preferably in the range of 12 ° to 17 °.
  • a concave portion extending in the circumferential direction is provided on the axially outer side surface of the barrel-shaped elastic ring having a cross-sectional shape, and on a radially outer region thereof.
  • the rim assemblability of the run-flat support body may be reduced if the elastic ring is left as it is.
  • the elastic ring on the inner diameter side is dropped into the rim wheel in the same manner as when the rim is assembled alone with the pneumatic tire alone. Since it is carried out by riding on a rim sheet while applying internal pressure, if the bending rigidity of the elastic ring is large, the rim assembly operability will be reduced due to the increase in bending resistance.
  • the concave portion extending in the circumferential direction is provided on the axially outer side surface of the elastic ring as described above, the elastic ring is bent and chewed at the concave portion, and the rim assemblability can be improved. Also, even if such a concave portion is provided, the elastic phosphorus Since the barrel has a barrel-shaped cross-section, if the depth and position of the concave portion are appropriate, the load support of the run flat support and the function of preventing the bead from falling off will not be impaired.
  • the maximum depth of the concave portion is preferably set such that the distance D from the tangent line L 2 is within 2 mm inward and 1 mm outward, with reference to the tangent line L 2 described above. Further, the position of the maximum depth of the concave portion is preferably located radially inward from the embedded position of the bent portion at the end of the annular shell in order to reduce the bending resistance. More specifically, the radial distance H2 from the radially innermost surface of the bent portion of the annular shell to the center of the maximum depth of the concave portion is determined by the distance H2 from the radially innermost surface of the bent portion of the annular shell. It is good to be 10 to 35%, preferably 20 to 25% of the radial distance H1 to the vertex P1.
  • the center of the maximum depth means one point when the position of the maximum depth is only one point, and when the maximum depth is continuous at the same depth, it is the same.
  • Depth means the center of the radial length.
  • the elastic ring material surrounds the axial outer end P4 with a thickness of 5 mm or more.
  • FIG. 1 is a cross-sectional view (meridian cross-sectional view) showing a main part of a tire / wheel assembly (wheel) according to an embodiment of the present invention.
  • rim 1 is a rim around the wheel
  • 2 is a pneumatic tire
  • 3 is a run flat support.
  • the rim 1, the pneumatic tire 2, and the run flat support 3 are formed coaxially in an annular shape around a rotation axis of a wheel (not shown).
  • the run flat support 3 includes an annular shell 4 formed of a rigid material such as a metal or a resin, and an elastic ring 5 formed of an elastic material such as a hard rubber or an elastic resin.
  • the annular seal 4 is formed so that convexes 4 a, 4 a composed of two convex curved surfaces are arranged on the outer peripheral side in the evening width direction.
  • the inner peripheral side walls of the annular seal 4 are bifurcated into legs 6 and 6, respectively, and elastic rings 5 and 5 are attached to their ends.
  • the run-flat support 3 configured as described above is located inside the pneumatic tire 2.
  • the elastic rings 5, 5, together with the bead portions 2b, 2b, are simultaneously mounted on the rim seats 1s, 1s of the rim 1 in the inserted state.
  • a bead core 7 is annularly embedded in each bead portion 2b along the circumferential direction of the tire, and the embedding of the bead core 7 imparts rigidity to the bead portion 2b.
  • flange-shaped bent portions 4 f, 4 f are formed at both ends of the annular seal 4, respectively, and the bent portions 4 f are embedded in the outer peripheral side of the annular elastic ring 5.
  • the elastic ring 5 has a barrel shape as a whole in a cross section (meridian cross section) perpendicular to the circumferential direction, and has bulging portions 5a and 5b on both sides.
  • the bulged portion 5a on one side contacts the axial inner end P3 of the bent portion 4f of the annular seal 4 from the vertex P1 (center point in the flat width direction) of the hump 1h on the rim sheet 1s. From the tangent line L1 extending as described above, the maximum thickness A swells so as to be 3 to 6 mm, preferably 4 to 5 mm.
  • the bulging portion 5b on the opposite side is defined as P2, where P2 is the intersection point where the line segment L3 passing through the centroid G of the bead core 7 and parallel to the tire axis intersects the inner surface of the tire bead portion 2b.
  • the maximum thickness B is 1 to 5 mm, preferably 1.5 to 3.5 mm, from a tangent line L2 extending so as to contact the axial outer end P4 of the bent portion 4f of the annular shell 4 It is bulging.
  • These bulges P5a, P5b may be trapezoidal or mountain-like with a smooth curve as long as they form a barrel shape as a whole.
  • the above-described barrel-shaped elastic ring 5 having a cross-sectional shape has a radially inner end that is at least a vertex P 1 of the hump 1 h on the rim sheet I s and an intersection P 2 of the inner surface of the tire bead portion.
  • the illustrated elastic ring 5 is provided with a concave portion 8 extending in the circumferential direction in a region on the outer side in the axial direction and on the outer side in the radial direction. The formation of the concave portion 8 makes the elastic ring 5 easily bend with the concave portion 8 as a bent portion, so that the rim assemblability of the run flat support 3 is improved.
  • the maximum depth of the recess 8 is set as a distance D with respect to the tangent line L 2 within 2 mm inward and 1 mm outward.
  • the position of the maximum depth of the concave portion 8 is defined as a radial distance H2 from the radially innermost surface of the bent portion 4 f of the annular shell 4, and a hump from the radially innermost surface of the bent portion 4 f of the annular shell 4. It is set to 10 to 35%, preferably 20 to 25% of the radial distance HI to the vertex P1.
  • the maximum depth is continuous at the same depth as shown in Fig. 2, the position of the maximum depth of the concave portion is the center point of the radial length. If the maximum depth is only one location as in the example, that one location shall be adopted.
  • the axially outer end P4 of the bent portion 4f of the annular seal 4 is covered by a rubber material of the elastic ring 5 with a thickness of at least 5 mm.
  • the tire size and rim size are set to 205 / 55.5R16, 16x61 / 2JJ respectively, and the annular seal of the run flat support is formed from a lmm thick steel plate, and the elastic ring is formed.
  • JIS-Rubber with A hardness of 85 and barrel-shaped cross section as shown in Fig. 2 set the inclination angle ⁇ of the tangent L 1 to 10 °, the depth D of the recess to O mm, and the position H2 to 20% of HI. 1 to 10 and Comparative Examples 1 to 5 in which the maximum thicknesses A and B of the barrel-shaped bulges were made different as shown in Table 1, respectively.
  • the elastic ring of the run flat support is formed in the barrel-shaped cross section, the cross-sectional area sandwiched between the tangents L 1 and L 2 is used as the load transmitting section, and its radial inner end is Part at least from the apex of the hump on the rim to the intersection P2 corresponding to the bead center of the bead on the inner surface of the tire bead.
  • Part of the tire bead can be loaded as a component force on the rim flange side, and the tire bead can be strongly clamped between the rim flange and the rim flange.
  • the component force toward the rim flange passes through the center of the bead core, the pinching pressure on the tire bead portion is further increased, and the effect of preventing the bead portion from falling off can be further improved.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Tires In General (AREA)

Abstract

L'invention concerne un assemblage pneumatique/roue, comprenant un corps de support à affaissement limité se composant d'une enveloppe annulaire présentant une face périphérique externe qui sert de surface de support, et une face périphérique interne formant deux éléments ouverts à la manière d'une fourche, ainsi que des anneaux élastiques qui maintiennent les parties terminales des éléments ouverts en forme de fourche sur la jante. Ce corps de support est introduit dans la partie creuse d'un pneumatique, et des parties recourbées sont formées dans les parties terminales de l'enveloppe annulaire, au niveau du raccordement de l'enveloppe avec les anneaux élastiques. Lorsqu'on l'observe en section transversale dans une direction orthogonale à sa circonférence, l'anneau présente une forme de tonneau avec des faces latérales bombées. L'épaisseur maximale (A) en section de l'anneau élastique, dépassant d'une ligne tangentielle (L1) qui s'étend du sommet (P1) de la bosse formée sur la jante de manière à se terminer sur l'extrémité axiale interne (P3) de la partie recourbée, est de 3 à 6 mm, et l'épaisseur maximale (B) de l'anneau, dépassant d'une ligne tangentielle (L2) qui s'étend à partir de l'intersection (P2) entre un segment de ligne (L3) parallèle à l'axe du pneu, passant par le centre de gravité de la tringle, et la surface interne du talon du pneu, pour arriver sur l'extrémité axiale externe (P4) de la partie recourbée, est comprise entre 1 et 5 mm.
PCT/JP2003/009322 2002-08-23 2003-07-23 Assemblage pneumatique/roue Ceased WO2004018239A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US10/513,020 US7036543B2 (en) 2002-08-23 2003-07-23 Tire/wheel assembly

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2002-243179 2002-08-23
JP2002243179A JP4183030B2 (ja) 2002-08-23 2002-08-23 タイヤ／ホイール組立体

Publications (1)

Publication Number Publication Date
WO2004018239A1 true WO2004018239A1 (fr) 2004-03-04

Family

ID=31944088

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2003/009322 Ceased WO2004018239A1 (fr) 2002-08-23 2003-07-23 Assemblage pneumatique/roue

Country Status (5)

Country Link
US (1) US7036543B2 (fr)
JP (1) JP4183030B2 (fr)
KR (1) KR20050033559A (fr)
CN (1) CN1328072C (fr)
WO (1) WO2004018239A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4183031B2 (ja) * 2002-08-23 2008-11-19 横浜ゴム株式会社 タイヤ／ホイール組立体
FR2876955B1 (fr) * 2004-10-25 2008-10-10 Hutchinson Sa Dispositif destine a bloquer les talons d'une enveloppe de pneumatique contre les rebords d'une jante
JP4384098B2 (ja) 2005-09-07 2009-12-16 横浜ゴム株式会社 ランフラット支持体と空気入りタイヤとの固定具
GB0702156D0 (en) * 2007-02-05 2007-03-14 Lust Richard Method and system for fitting a runflat assembly
US9481205B2 (en) * 2011-12-08 2016-11-01 Weld Racing, Llc Vehicle wheel

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6254003U (fr) * 1985-09-25 1987-04-03
JPH10297226A (ja) * 1997-02-24 1998-11-10 Continental Ag 空気タイヤ付き車輪
WO1999064260A1 (fr) * 1998-06-05 1999-12-16 Continental Aktiengesellschaft Roue de vehicule automobile comportant un corps d'appui pour roulement de secours
JP2001519279A (ja) * 1997-10-15 2001-10-23 コンテイネンタル・アクチエンゲゼルシヤフト 緊急走行支持体を備えた自動車車輪
US20020195183A1 (en) * 2001-06-26 2002-12-26 Michael Glinz Emergency support member

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2338192Y (zh) * 1998-05-21 1999-09-15 陈福祥 一种轮胎衬环
JP3980435B2 (ja) * 2002-07-26 2007-09-26 横浜ゴム株式会社 タイヤホイール組立体及びランフラット用支持体
JP4039909B2 (ja) * 2002-07-26 2008-01-30 横浜ゴム株式会社 タイヤホイール組立体及びランフラット用支持体
CN100357123C (zh) * 2002-08-12 2007-12-26 横滨橡胶株式会社 轮胎－车轮组件

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6254003U (fr) * 1985-09-25 1987-04-03
JPH10297226A (ja) * 1997-02-24 1998-11-10 Continental Ag 空気タイヤ付き車輪
JP2001519279A (ja) * 1997-10-15 2001-10-23 コンテイネンタル・アクチエンゲゼルシヤフト 緊急走行支持体を備えた自動車車輪
WO1999064260A1 (fr) * 1998-06-05 1999-12-16 Continental Aktiengesellschaft Roue de vehicule automobile comportant un corps d'appui pour roulement de secours
US20020195183A1 (en) * 2001-06-26 2002-12-26 Michael Glinz Emergency support member

Also Published As

Publication number Publication date
US20050161139A1 (en) 2005-07-28
CN1662396A (zh) 2005-08-31
CN1328072C (zh) 2007-07-25
JP4183030B2 (ja) 2008-11-19
US7036543B2 (en) 2006-05-02
KR20050033559A (ko) 2005-04-12
JP2004082770A (ja) 2004-03-18

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